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General| Dissolved Gas Analysis | Yes |
|---|---|
| Transformer Monitoring | Yes |
| Measurement Technology | Gas Chromatography |
| Power Supply | 100-240 VAC, 50/60 Hz |
| Gases Measured | H2, CO, CH4, C2H2, C2H4, C2H6, CO2, O2, N2 |
| Measurement Parameters | Dissolved Gas Concentrations |
| Measurement Range (C2H2) | 0 - 1, 000 ppm |
| Detection Limit (C2H2) | 1 ppm |
| Sample Volume | 5 ml |
Provides an overview of the Kelman DGA 900 Plus system's capabilities and architecture.
Details the manual's coverage, including DGA 900 Plus specific features and other related manuals.
Explains the meaning of safety symbols used in the manual and on the DGA 900 Plus device.
Lists essential safety statements and precautions to be observed during installation and service.
Describes the available TMS option packs for the DGA 900 Plus, including Thermal Models, Cooling Status, OLTC, and Bushing monitors.
Details the input types and sensor configurations for the Thermal Models card.
Explains the wiring requirements for the Thermal Models card, including terminal specifications.
Describes the top and bottom oil temperature sensors and their connection for monitoring.
Explains the function and specifications of the split core CT sensors used for transformer load measurement.
Lists the input types and sensor configurations for monitoring up to four cooling banks.
Provides wiring diagrams for analogue and digital inputs for the Cooling Status monitor.
Details the inputs for the OLTC Monitor, including tap position, temperature, and torque sensors.
Describes the active power measuring converter module used for OLTC motor torque monitoring.
Guides the general installation layout for the Bushing & PD Monitor, including safety warnings.
Shows the internal components of the Hub module relevant to bushing and PD monitoring.
Covers power supply and communication cable connections for the product, including safety regulations.
Details the installation process for Bushing Adaptors, including checks and grease application.
Explains the correct installation of HFCT sensors for detecting PD activity and minimizing noise.
Describes the installation of MMTS for measuring transformer top oil temperature.
Details how to connect the sensors and cables to the product cabinet's terminal rail.
Outlines the procedure for testing the electrical integrity of the Bushing Adaptor installation.
Guides on how to view and reset factory settings for the DGA 900 Plus device.
Explains how to reset specific models and their parameters within the DGA 900 Plus system.
Details the essential steps for commissioning the OLTC Monitor, including software requirements and files.
Covers initial steps like testing product connection and disabling motor torque alarms.
Guides on setting baseline parameters for OLTC, including tap position mapping and torque configuration.
Explains how to download OLTC data from the DGA 900 Plus to Perception Desktop software.
Describes how to use Excel tools to generate OLTC configuration files like TapPositionCalibration.cfg.
Details the process of importing generated configuration files into the DGA 900 Plus.
Final steps for OLTC commissioning, including tap position reset and re-enabling alarms.
Outlines parameters and procedures for commissioning the Bushing & PD Monitor.
Covers the initial configuration settings for the Bushing & PD Monitor, including voltage and frequency.
Details how to measure voltage across bushing adaptor inputs and expected ranges.
Guides on checking C1% measurement accuracy and troubleshooting potential issues.
Explains how to verify wiring and configure alarms for instantaneous Tan δ measurements.
Describes how to measure and adjust HF noise thresholds for PD detection.
Details how to measure and adjust alarms for PDI Associated Power.
Guides on measuring and adjusting alarms for PD Average Apparent Charge.
Explains how to measure and adjust alarms for PD Max Apparent Charge.
Covers exporting the configuration settings to a PC for record-keeping.
Final checks for Bushing Adaptor failure alarms after installation.
Lists standard items and installation kit components supplied by GE with the product.
Lists items that a GE Field Service Engineer will provide for the installation.
Lists items that the customer must procure for the installation, such as cables and tools.
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